90858680

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{5581}}^1$

素因数の和:5640

約数の個数: 64

約数和(自身を含む): 229085280

約数和(自身を除く): 138226600

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 37, 40, 44, 55, 74, 88, 110, 148, 185, 220, 296, 370, 407, 440, 740, 814, 1480, 1628, 2035, 3256, 4070, 5581, 8140, 11162, 16280, 22324, 27905, 44648, 55810, 61391, 111620, 122782, 206497, 223240, 245564, 306955, 412994, 491128, 613910, 825988, 1032485, 1227820, 1651976, 2064970, 2271467, 2455640, 4129940, 4542934, 8259880, 9085868, 11357335, 18171736, 22714670, 45429340, 90858680]

約数ペア:

[(1, 90858680), (2, 45429340), (4, 22714670), (5, 18171736), (8, 11357335), (10, 9085868), (11, 8259880), (20, 4542934), (22, 4129940), (37, 2455640), (40, 2271467), (44, 2064970), (55, 1651976), (74, 1227820), (88, 1032485), (110, 825988), (148, 613910), (185, 491128), (220, 412994), (296, 306955), (370, 245564), (407, 223240), (440, 206497), (740, 122782), (814, 111620), (1480, 61391), (1628, 55810), (2035, 44648), (3256, 27905), (4070, 22324), (5581, 16280), (8140, 11162)]